| 摘要 |
A plurality of trapezoidal wedges in a channel for retaining a PCB heat sink are held in place by spring force provided by a compression spring inside the bottom end wedge. The compression forces provided by the spring are mainly effective to prevent twisting of wedges on the absence of a heat sink and to provide at least some degree of heat transfer between the heat sink and the chassis even if the responsible technician neglects to torque down the wedges.
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